llvm-6502/test/DebugInfo/X86/discriminator.ll
Duncan P. N. Exon Smith e56023a059 IR: Give 'DI' prefix to debug info metadata
Finish off PR23080 by renaming the debug info IR constructs from `MD*`
to `DI*`.  The last of the `DIDescriptor` classes were deleted in
r235356, and the last of the related typedefs removed in r235413, so
this has all baked for about a week.

Note: If you have out-of-tree code (like a frontend), I recommend that
you get everything compiling and tests passing with the *previous*
commit before updating to this one.  It'll be easier to keep track of
what code is using the `DIDescriptor` hierarchy and what you've already
updated, and I think you're extremely unlikely to insert bugs.  YMMV of
course.

Back to *this* commit: I did this using the rename-md-di-nodes.sh
upgrade script I've attached to PR23080 (both code and testcases) and
filtered through clang-format-diff.py.  I edited the tests for
test/Assembler/invalid-generic-debug-node-*.ll by hand since the columns
were off-by-three.  It should work on your out-of-tree testcases (and
code, if you've followed the advice in the previous paragraph).

Some of the tests are in badly named files now (e.g.,
test/Assembler/invalid-mdcompositetype-missing-tag.ll should be
'dicompositetype'); I'll come back and move the files in a follow-up
commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236120 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-29 16:38:44 +00:00

64 lines
2.6 KiB
LLVM

; RUN: llc -mtriple=i386-unknown-unknown -mcpu=core2 %s -o %t -filetype=obj
; RUN: llvm-dwarfdump -debug-dump=line %t | FileCheck %s
;
; Generated from:
;
; int foo(int i) {
; if (i < 10) return i - 1;
; return 0;
; }
;
; Manually generated debug nodes !14 and !15 to incorporate an
; arbitrary discriminator with value 42.
define i32 @foo(i32 %i) #0 {
entry:
%retval = alloca i32, align 4
%i.addr = alloca i32, align 4
store i32 %i, i32* %i.addr, align 4
%0 = load i32, i32* %i.addr, align 4, !dbg !10
%cmp = icmp slt i32 %0, 10, !dbg !10
br i1 %cmp, label %if.then, label %if.end, !dbg !10
if.then: ; preds = %entry
%1 = load i32, i32* %i.addr, align 4, !dbg !14
%sub = sub nsw i32 %1, 1, !dbg !14
store i32 %sub, i32* %retval, !dbg !14
br label %return, !dbg !14
if.end: ; preds = %entry
store i32 0, i32* %retval, !dbg !12
br label %return, !dbg !12
return: ; preds = %if.end, %if.then
%2 = load i32, i32* %retval, !dbg !13
ret i32 %2, !dbg !13
}
attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!7, !8}
!llvm.ident = !{!9}
!0 = !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5 ", isOptimized: false, emissionKind: 0, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
!1 = !DIFile(filename: "discriminator.c", directory: ".")
!2 = !{}
!3 = !{!4}
!4 = !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 1, file: !1, scope: !5, type: !6, function: i32 (i32)* @foo, variables: !2)
!5 = !DIFile(filename: "discriminator.c", directory: ".")
!6 = !DISubroutineType(types: !2)
!7 = !{i32 2, !"Dwarf Version", i32 4}
!8 = !{i32 1, !"Debug Info Version", i32 3}
!9 = !{!"clang version 3.5 "}
!10 = !DILocation(line: 2, scope: !11)
!11 = distinct !DILexicalBlock(line: 2, column: 0, file: !1, scope: !4)
!12 = !DILocation(line: 3, scope: !4)
!13 = !DILocation(line: 4, scope: !4)
!14 = !DILocation(line: 2, scope: !15)
!15 = !DILexicalBlockFile(discriminator: 42, file: !1, scope: !4)
; CHECK: Address Line Column File ISA Discriminator Flags
; CHECK: ------------------ ------ ------ ------ --- ------------- -------------
; CHECK: 0x0000000000000011 2 0 1 0 42 {{$}}